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Prase Opal
Prase Opal

Lazurite
Lazurite



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Prase Opal
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Lazurite

Prase Opal and Lazurite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.25
2.75
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Not Available
Imperfect on {110}
1.7 Mohs Hardness
5-6.5
5.5
1.8 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Prase Opal and Lazurite Chemical Formula

While comparing Prase Opal and Lazurite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Prase Opal and Lazurite chemical formula.

  • Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Prase Opal and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase Opal and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase Opal and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Prase Opal is 2.75 whereas that of Lazurite is 2.75.